TWI399946B - Method and system of communications - Google Patents

Abstract

The present invention relates to communications. More especially it relates to multiple access communications over diverse access technologies. Particularly it relates to multiple radio access technologies and heterogeneous networks and admission control for multi-technology access, the admission control serving one or more communication sessions over more than one access technology at the same time.

Description

Communication method and system

The present invention relates to communication. More specifically, it relates to multiple access communications via different access technologies. Specifically, it relates to multiple radio access technologies and heterogeneous networks.

In terms of communication, there are multiple access technologies, and more access technologies are being developed to meet the increasing demand for capacity and requirements for maximum response time, time jitter, and the like. In particular, for radio communication, we know that different technologies such as GPRS (Integrated Packet Radio Service) UMTS (Global Telecommunications System) and WLAN (Wireless Area Network) radio communication are via one of a plurality of available networks. Transmit packet data.

A network that operates only on one access technology is called a homogeneous network. A network that includes different access technologies is called a heterogeneous network.

XGWang, J. Mellor, and K. Al-Begain, "Towards Providing QoS for Integrated Cellular and WLAN Networks", PostGraduate Networking Conference (PGNet 2003), Liverpool, UK, June 2003, describes interconnected WLAN radio access networks Road and 3G or 2G cellular networks are an effective way to enhance network service. The publication discusses two different methods for combining WLAN with cellular networks: loose coupling and tight coupling. In terms of loose coupling, WLAN and cellular networks are two independent access networks with connected core networks. In terms of tight coupling, it is recommended to use WLAN as a new radio access technology within a cellular system. Regardless of the access technology used, there will be only one general-purpose cellular core network in terms of tight coupling. According to the prior art QoS model structure, the CAC (Connection Admission Control) module allows the amount of data streams that can be served, and configures the bandwidth by signaling all network nodes along the traffic path (traffic path). Give these data streams. The module also needs to maintain the QoS requirements of existing connections. The CAC uses certain reservation agreements (eg, RSVP) to reserve the actual resources for the user's data stream. The publication proposes a user-triggered handoff when roaming into the WLAN from the cellular network and a normal handoff when roaming into the cellular network from the WLAN.

"An adaptive QoS management scheme for interworking cellular and WLAN networks" by XGWang, G.Min, J.Mellor, K.Al-Begain, L.Guan, 7th UK Simulation Society Conference (UKSim2004), Oxford, UK, 2004 March 29-31, pp. 145-150, addresses the challenges of designing integrated WLAN and 3G networks, and addresses resource utilization, call blocking probability, and handover interruption rates. (manoff clearance probability) simulation test and results.

Ken Murray, Dirk Pesch, "State of the Art: Admission Control and Mobility Management in Heterogeneous Wireless Networks" TSSG, Waterford Institute of Technology Cork Rd, Waterford, Ireland, May 2003, discusses cross-heterogeneous networks Seamless system roaming. The push for heterogeneous networks is due to the fact that there is no single technology or service that provides multiple levels of coverage and continuous high QoS (quality of service). Therefore, for mobile terminals, it will be necessary to use various attachment points to maintain connectivity to the corresponding nodes. Both packet switching and circuit switched services can be freely mixed, can have varying bandwidths and can be simultaneously delivered to the same user at a particular quality level. The satellite network guarantees global coverage and full-scale computing, but with lower QoS constraints than its cellular counterparts, while WLAN provides high-speed data services in geographically small areas (up to 11 Mb/s and 802.11a in 802.11b) Up to 54 Mb/s under /g). These technologies differ in bandwidth, latency, power consumption, and cost. Admission control and mobility management strategies help to achieve load balancing between networks. The user can be forced to hand over to another network, giving way to users with higher bandwidth requirements and thus prioritizing users. It is possible to use a admission control algorithm to allow a user to simultaneously access multiple networks and use multiple connections to deliver services to the user, and thus achieve higher QoS than the QoS provided by a single network. If multiple networks are available to a user at any time, it is an important factor to improve the QoS of all users by selecting the best network for a specific service and selecting a correct time to perform vertical handover. . This publication describes the concept of Fuzzy Logic for handover initiation, network selection, and handover execution. The paper concludes that the admission control mechanism on heterogeneous networks based on radio channel characteristics, resource availability, QoS constraints, and user policies remains an open question.

CAMantilla, JL Marzo, "A QoS Framework for heterogeneous Wireless Networks using a Multiagent System" European Wireless 2004, The Fifth European Wireless Conference Mobile and Wireless Systems beyond 3G, February 2004, describes QoS in heterogeneous wireless networks, Multiagent system and QoS architecture in heterogeneous wireless networks using multi-agent systems. This document proposes a multi-agent system in which each access point in each technology or network has a set of agents that act in different roles and collaborate or compete. The overall functionality of the MAS (Multi-Agent System) includes call admission control to accept or reject an incoming call, register the call with a security policy, and configure resource mapping with the new network for mapping and handover execution. The Radio Resource Manager agent is responsible for the execution of the status of the access point, available resources, and horizontal handover (ie, intra-technology handover) and vertical handover (ie, handover between access technologies).

E. Mohyeldin, M. Dilinger, E. Schulz and J. Luo, "Joint admission control and scheduling algorithm in tightly coupled heterogeneous networks", 6th WWRF conference, London, UK, June 2002, proposed for tight coupling Two-stage admission control and resource scheduling (Resource Scheduling) for the network (UMTS and WLAN). The Radio Network Controller (RNC) owns and controls the radio resources of all sub-networks within its domain, where the interaction between sub-networks is mostly achieved by the RNC. After the first phase of the Joint Session Admission Control (JOSAC), incoming traffic within the system is split into different types of traffic. The second phase of the Session Admission Control (SAC) selects the transport entity mode of the transport service or, if the network is unable to provide the requested service, interrupts the application. Based on the static service and network settings selected in the first phase, the first phase of the admission control assigns a range to the weights provided to the second phase, which are based on the settings of the network, the terminal, and the user. Define the type of service. A tightly coupled communication flow via two RATs (Radio Access Technology) is scheduled by JOSCH (Joint Radio Resource Scheduling) operating between the first phase and the second phase. The JOSCH post-separation traffic is forwarded to a separate SAC in a sub-network defined by each RAT within a delay bound. Based on the control information provided from the JOSCH, the SAC maps the separate communication traffic into a conventional communication traffic type having a specific priority weight. The QoS type range of the schedule configures resources for different QoS types. Based on the load of the subnet, the expected traffic flow model, and the feasibility of separating the traffic, the joint admission control assigns radio resources to the corresponding amount of traffic in each subnet.

"Performance Investigations of ARMH in a Reconfigurable Environment" SCOUT Workshop by J. Luo, E. Mohyeldin, N. Motte, M. Dilinger, September 2003, discusses ARMH for tightly coupled radio access technology (RAT) The concept of (adaptive radio multi-homing) and the simultaneous connection in a separate radio network via support for multiple radio addresses belonging to the terminal. In the case of joint admission control, traffic cannot be separated; sessions/messages cannot be separated onto different networks, but for packet switched communications it can be alternately allowed to a different network. JOSAC can only make progress due to the delivery of traffic, or alternatively due to the transfer of communication traffic to different systems. JOSCH provides detailed communication traffic separation.

If the mobile terminal has a simultaneous connection supported by the reconfigurable terminal, the data flow and control commands can be delivered via different air interfaces having different delay characteristics in terms of average delay and delay variation (jitter). . The separation of communication traffic is driven by a reduced load on a separate network, whereby the separation provides a higher trunking gain from a radio resource management (RRM) perspective, and if the separation is based on user settings and requirements, Designed with a network architecture, it provides better QoS from a user perspective.

This document refers to an example in which a terminal requests a scalable video service from a remote server via a tightly coupled subnetwork (UMTS and WLAN). It is assumed that both networks are controlled by a common RNC. In order to establish simultaneous substreams belonging to the same video content, the RNC first receives an application or request from a mobile terminal having multiple radio access/addresses. The RNC contacts or urges the remote server to separate traffic, and the RNC indicates the average rate in each sub-link. Traffic is split and sent to the RNC, which receives the separated traffic and maps it to a tightly coupled subnet. The separated communication traffic contains (for each subnet) tagged and time indexed packets. The synchronization mechanism in the RNC corrects the delay generated by the wireless electronic network.

International Patent Application No. WO03088686 discloses a method of multiple service configurations in a multiple access system. Depending on the combined capacity area of the wireless communication system, a user of a given service in a wireless communication system including a plurality of multiple service subsystems is configured for a subsystem. The combined capacity area is determined based on a capacity area of each of the plurality of multiple service subsystems, and the capacity area is increased by a relative decrease in users of the first service as a user of the second service The function to determine.

None of the above cited documents disclose admission control for multiple technology access by simultaneously segmenting a session among available access technologies while serving one or more via one or more access technologies. Sessions, each session is received by a multi-technology access system that is executed within the access system or by separating separate streams of data in more than one access technology. Moreover, none of the above cited documents disclose access to technical data streams based on data security or user or terminal preferences.

As indicated in the prior art, in multiple technology access, admission control is an important part. The primary purpose of multiple technology access admission control is to protect QoS agreements that have been established with multiple technology access systems. The present invention proposes a method and system for multiple technology access admission control that satisfies this purpose while improving the system capacity and spectral efficiency of the overall multi-technology access system.

A general problem with multi-technology access systems is that when a data is transmitted, the requirements of a session regarding, for example, QoS, security, or terminal specific requirements are met. Another issue is how to incorporate such requirements when configuring communication traffic to many access technologies of a heterogeneous system.

Current MTA technology imposes an increased requirement on the service provider or increases the risk of refusing a session and an unnecessarily high range of reasonable interrupt rate requirements for admission to the session. In addition, user requirements or terminal requirements for, for example, security cannot be guaranteed.

Therefore, it is necessary to provide multiple technology access control to separate the session into a plurality of data streams without imposing an increase on the requirements of many data service providers, and to ensure that many specifications do not retain resources with a minimum resource size that is larger than the resource range, and Incoming sessions provide a sufficiently low outage rate.

Accordingly, it is an object of the present invention to achieve a multi-technology access admission control that provides for separating one or more communication sessions into a plurality of data streams for distribution via different access technologies.

A further object is to achieve experimental admission control that incorporates all of the allowed data streams for each access technology when a communication session is admitted.

Moreover, it is an object to achieve a method and system that provides access technology selection and multiple access technology admission control that incorporates security requirements or preferences for a user, terminal, or service that initiates a particular session.

Another object is to provide a multi-technology access admission control that includes predicting service efficiency or resource requirements for a plurality of data streams separated by a session.

Finally, one objective is to increase the reliability of the session in terms of the probability of interruption of the admission session, or equivalently, to reduce the range of resources required by one or more of the access technologies involved in session distribution or its admission control.

These objects are achieved by a method and system for experimental multi-technology access control.

As indicated in the prior art, in multi-technology access MTA, admission control is an important part. The main purpose of the MTA to control the MTAC is to protect the QoS agreements that have been established with the MTA system. The present invention proposes a method and system for MTAC that satisfies this purpose while improving the system capacity and spectral efficiency of the overall MTA system.

Figure 1 illustrates MTA admission control in accordance with the present invention. The MTA system "MTA sys" adjusts several heterogeneous access technologies AT "AT _A ", "AT _B ", "AT _C ". By configuring different session "session" data streams to different AT "AT _A ", "AT _B ", "AT _C ", or by streaming separate data to more than one access technology "AT _A ", "AT" _B 》, AT _C 》 separate data stream, MTA system can use more than one access technology "AT _A ", "AT _B ", "AT _C " to deliver communication traffic for a single communication session "session" .

The single access technology "AT _A ", "AT _B ", "AT _C " can be perceived as MTA system "MTA sys", as shown in Figure 1 by a MTA permission control "MTAC" and integrated access technology "AT _A" As indicated by the dotted line, or the MTA system "MTA sys" is perceived, as for the two instance access technologies "AT _B " and "AT _C ", the dotted lines do not surround the two unconformed instances in the figure. Access technology "AT _B ", "AT _C " to indicate. The integrated access technology "AT _A " is, for example, an access technology designed to utilize all the capabilities of the MTA system "MTA sys", while the unintegrated access technologies "AT _B " and "AT _C " are (for example) A conventional access technology that was originally designed to operate independently.

According to the prior art, each of the unintegrated instance access technologies "AT _B " and "AT _C " includes homogeneous network access control "AT _B AC" and "AT _C AC". Also, according to the prior art, the integrated instance access technology can include homogenous access control "AT _A AC." However, the integration of the access technology to control the "AT _A AC" is better integrated with the MTA admission control "MTAC".

The MTA admission control "MTAC" determines whether a communication session should be admitted to the MTA system "MTA sys". The MTA grants control to the MTAC entity to request information about the capabilities of the individual access technologies "AT _A ", "AT _B ", "AT _C ", or as a substandard alternative, separate access to the technology release interrupt and The information is transmitted to the MTA system "MTA sys" MTA permission to control the "MTAC" entity.

The preferred MTA admission control performs three identified tasks, which are described with reference to Figure 2 as three steps "T1", "T2", "T3". The first task "T1" forms the access technology experimental group T. This performed in two sub-steps - forming a preliminary set T ^* includes an access ^{technologies,} such ^* RAT ^system available and of providing the required quality, and ^* minimal integral of the requirements for a communication session; and - The verification preliminary set T ^* can achieve the minimum separable requirement for the communication session.

One example of a minimum indivisible requirement is a session requirement regarding delay. Another minimally indivisible instance requires a secure/encrypted communication requirement. The minimum indivisible requirement is characterized in that it needs to be satisfied by at least one associated access technique such that the role of the combination satisfies the requirements, since the disadvantages of one access technique cannot be compensated for by the advantages of another access technique. Therefore, the indivisible requirements cannot be achieved by further separating the data stream from more access technologies.

One example of the minimum severable requirement is the minimum transmission rate requirement. The minimum instance requirement will be achieved if the sum of the transmission rate capabilities of the access techniques in the preliminary set T ^* is greater than or equal to the minimum transmission rate requirement. When different data streams can be combined differently, the minimum separable requirement of another example is reliability.

If the preliminary group T ^* in the first sub-step is empty or if the minimum severable requirement of the second sub-step fails verification, the experimental group T is empty, the MTAC entity rejects the communication session, and the session The admission process is aborted. When passed the verification, the experimental group T is set to be the same as the preliminary group T ^* .

The second task "T2" evaluates the configuration options from the non-empty experimental group T of the first step "T1". The purpose of the second step "T2" in the MTA admission control MTAC is to first generate a prioritized list of configuration options from the experimental group T, and evaluate the possibility of admission and access for many options. The potential impact of technology on resources (eg, channel resources). The cardinality of the group T is expressed as |T|.

If |T|=1, there is only one configuration choice.

If |T|=2, there are at least three different options, three of which are the number of choices from at least one of the two.

In general, if |T|=C, where C is an integer greater than zero, then the number of configuration choices is equal to or greater than the number of selections from at least one of C.

In practice, the number of access technologies considered is limited, and thus the maximum base C _{m a x is} also limited.

When a prioritized list of configuration choices is formed in a possible set of options, there may be a number of possible conflicts of purpose and aspects that should be considered. An important aspect is that the established QoS agreement for existing users in the MTA system should be protected. This means that it is necessary to estimate the current resource configuration and configuration growth for different configuration options.

Another aspect considered is that certain configurations may be less advantageous than providing other services compared to other configurations. The fact that certain services are only supported by certain access technologies has been intercepted by the first task "T1", where inappropriate techniques are not included in T. The evaluation of configuration options preferably prioritizes many configuration options. In the prioritization process, it is preferable to consider the input from the congestion control and the resource utilization of many access technologies.

According to one mode of the invention, the prioritization step includes an allocation option that minimizes channel resource consumption in a communication system comprising an MTA system or minimizes energy consumption of a wireless terminal (typically a portable terminal) , or (and in fact equivalently) minimize the number of access technologies involved in the incoming communication session.

In another mode of the invention, sub-requirements are defined for each (sub)data stream of a communication session, wherein the (sub)data streams are arranged on an access technique selected from the experimental group. In some example configurations, this causes the data stream of the communication session to be further separated into sub-data streams.

A list of prioritized sorts is obtained when all configuration options considered have been evaluated. To allow for, the options are considered one by one from a higher priority to a lower priority, and the process is then preferably aborted at the identified first allowable configuration option.

Table 1 below illustrates a prioritized ranking list for an instance from a higher priority to a lower priority number.

If the prioritized list is empty, the communication session is not allowed and the configuration process is aborted.

The third task, "T3," selects configuration options from a prioritized list. Since the session stream can be separated into sub-streams so that the sub-streams meet the severable requirements, so that the sub-streams can be configured to different access technologies, in all configurations under the MTAC, the selection of configuration options is preferably Experimental. The selection process in the selection step "T3" is illustrated in FIG.

The configuration begins by initializing "A1", a counter i, which is used to count the prioritized selections, preferably starting with the option having the highest priority. The "A1" is also initialized to represent the integer j of the number of choices "#alt." in the prioritized list. "AT _A AC", "AT _B AC", "AT _C AC" (see Figure 1) are transmitted by sending separate requests to each of the individual access technologies considered for configuration based on prioritized options. Thus, experimentally, for each access technique, the resource "A2" according to the option "i" under consideration is reserved for each data stream or sub-stream.

If resources can be reserved for all streams, they are retained in A3 and are allowed to enter session A4. Thereby, the selection step "T3" of FIG. 2 is completed.

If it is not possible to reserve resources for all streams of this option in the ranked list, then the next option "A5" of the prioritized list is studied as described above, unless the option is prioritized. The last item, in this case, the session was rejected "A6". When the session is admitted to "A4" or rejected "A6", the selection step "T3" of Fig. 2 is completed.

Figures 4 and 5 illustrate how sessions can be allowed in accordance with the present invention. In FIG. 4, resources are requested for a communication session "session" requiring a resource amount D. In the case of the non-experimental MTA admission control of Figure 4, the communication session "session" cannot be separated into multiple data streams, but the requested resource D is completely derived from an access technology "AT _A " to be admitted. , "AT _B ". The individual access control technologies of the access technology "AT _A AC" and "AT _B AC" study whether the required resources "D" can be allowed by comparing the demand and the unoccupied resources "R _A " and "R _B ". Each access technique has a total amount of communication resources (e.g., channel bandwidth) equal to O _A + R _A and O _B + R _B , respectively, where O _A and O _B are occupied resources, and R _A and R _B are respectively used for Access to technology A "AT _A " and B "AT _B " unoccupied resources. However, not all unoccupied resources can be configured, but there are resource ranges M _A , M _{B for} the minimum requirements of the access technologies "AT _A " and "AT _B ". The scope of resources "M _A ", "M _B " is the scope that allows the allowed sessions to increase their resource requirements. By introducing a range of "M _A ", "M _B " shared between users, the access technology can introduce more users because many users increase or decrease their resource requirements when they are statistically different. For a given probability that the entire resource range will be required, the larger the number of users, the smaller the resource range compared to the total unoccupied resources. Because the system of Figure 4 cannot separate the session into separate streams for distribution by different access technologies "AT _A ", "AT _B ", the entire resource requirement "D" and the resources available for configuration to the new session R _A - M _A and R _B -M _B are compared. Therefore, the requirement for the session to be admitted to the non-experimental multi-technology access system of Figure 4 is to satisfy at least one inequality of the following inequalities:

RAT _{"AT A", "AT B} " of the respective admission control _{"AT A AC", "AT} B AC" Study least this requirement. As far as the example illustrated in Figure 4 is concerned, the entire session is rejected because the access technologies "AT _A " and "AT _B " are not independent of available resources larger than the resource requirements.

Figure 5 illustrates the experimental MTA admission control "Tentative MTAC" in accordance with the present invention. Similar to Figure 4, there is a request for resource amount D for the communication session "session". Compared with Figure 4, the MTA admission control "Tentative MTAC" can separate the communication session into two independent data streams "session flow 1" and "session flow 2", which can be accessed by different access technologies "AT _A ", " Distributed by AT _B. In the illustrated example, “O _A ”, “O _B ” and “R _A ” are occupied, and the “R _B ” resources are the same as those in Figure 4. To simplify the presentation and focus on one issue at a time, it was originally assumed that the resource ranges "M _A " and "M _B " are the same as those of Figure 4. The MTA allows control of Tentative MTAC to study whether each data stream requires less resources than available resources. In the illustrated example, the communication session is divided into two streams "session flow 1", "session flow 2" that require an equal amount of communication resources 0.5D. However, the invention is not limited to symmetric separation sessions. The access control technologies "AT _A " and "AT _B " have their own access control "AT _A AC" and "AT _B AC" to compare resource requirements with available resources:

Since both of them are satisfied for the example case, the data streams "session flow 1" and "session flow 2" are allowed, because all the session requirements described in relation to FIG. 2 and FIG. 3 are satisfied, so The MTA admission control "Tentative MTAC" according to the present invention permits the entire session with resource requirement D.

Regarding the resource range, for the sake of simplicity, it is initially assumed that the ranges "M _A ", "M _B " are set to be the same for the non-experimental and experimental MTA admission control in Figs. 4 and 5, respectively. However, since the access technologies "AT _A " and "AT _B " of FIG. 5 can distribute the communication traffic of the user more than FIG. 4, the experimental MTA according to the present invention and schematically illustrated in FIG. 5 allows The resource range "M _A " and "M _B " that control Tentative MTAC can be set to be smaller without increasing the allowed communication session and data flow requirements for the entire resource range "M _A ", "M _B " The probability. This situation is accurate for both integrated access technologies and non-integrated access technologies.

The particular difficulties and deficiencies of the example wireless media emphasize the importance of not requiring a larger range of resources than needed.

One of the preferred features of the experimental MTA admission control in Figure 5 is that the admission control Tentative MTAC does not allow resource configuration if there are not enough resources available for all session flows. As for the instance data stream "session flow 1" and "session flow 2", it is preferable that if one of the data streams "session flow 1" and "session flow 2" cannot be admitted, the data stream "session flow 1" The other of "session flow 2" cannot be admitted.

Another preferred feature of the present invention is an access technique for each data stream selection that is based not only on the general load conditions of each of the access technologies under consideration, but also on the need for a particular data stream to be needed in the near future. Forecast of service efficiency or resources. This is done at the statistical level by determining the overall service efficiency of each access technology or by performing measurements for one or more of the considered terminals (without excluding combinations thereof).

The invention is not limited to pure QoS requirements such as data rate, average delay, and delay variation (jitter). Another feature of the invention is that the session can be controlled, in whole or in part, for distribution via one or more specific access technologies that provide the required level of security. For example, early WLANs may not provide the requested level of security, while both UMTS and GSM GPRS can provide the requested level of security. Next, the MTA in accordance with the present invention allows the MTAC to control the separation of sessions as needed and distribute one or more security-sensitive session streams via UMTS or GSM GPRS, while less sensitive information can be distributed via a less secure WLAN construct. Or it is not allowed to distribute session streams via WLAN. The security requirements are preferably included as severable or indivisible requirements, with the necessary changes, as described in connection with FIG. 2.

Accordingly, the preferred embodiment of the present invention configures the most efficient access technology for resources, which also considers specific requirements such as user/terminal preferences, QoS parameters or security levels supported by some (but not all) access technologies. /parameter.

The invention is applied to both wired access technology and wireless access technology, wherein communication traffic can be separated into a plurality of access technologies. However, particular emphasis is placed on the multiple technical access of wireless access technologies due to the greater difficulty of wireless media, as well as the application of such different technologies that have evolved and are evolving to cope with the difficulties of different environments and different uses.

In a preferred embodiment of the invention, it is applied to radio communications, that is, the access technology is a Radio Access Technology (RAT). When applied to a radio communication system, the MTA admission control is preferably located in one place with the radio network controller of the radio communication system. The admission control of a number of separate access technologies is preferably located at an access point of a radio network controller or radio communication system.

The invention is also applicable to any other wireless communication having a plurality of communication related access technologies other than radio communication, such as infrared communication and ultrasonic communication.

The invention is not intended to be limited to the embodiments described in detail above. Modifications and modifications can be made without departing from the invention. It covers all modifications within the scope of the following claims.

Figure 1 illustrates MTA admission control in accordance with the present invention.

Figure 2 is a schematic illustration of a preferred MTA admission control for performing three identified tasks in accordance with the present invention.

3 illustrates a simplified flow diagram for selecting an access technique for separation of communication sessions in accordance with the present invention.

Figure 4 illustrates how resources requested for a communication session requiring a resource amount D are rejected for admission control according to the prior art.

Figure 5 illustrates primarily the communication session in which the experimental MTA admission control in accordance with the present invention permits the required amount of resources D.

Claims (34)

A method of multiple technology access communication, the communication comprising the admission control of distributing communication traffic via two or more access technologies, the method being characterized by separating a multi-technology access communication session into two Or more than two data streams such that the data streams can be distributed via two or more access technologies, the configuration of the two or more data streams to a particular access technology including the access User or terminal preferences or security requirements in one or more parameters. The method of claim 1, wherein the configuration comprises selecting one or more configuration options, the selection comprising one or more of the following steps: a first step of preparing to reserve one or more resources, and a second step , in the case that all data streams of the communication session are allowed to be admitted, determining to reserve resources according to the reserve, and a third step, which allows all data streams of the communication session to be admitted The session is entered and the session is rejected if the data stream of the communication session is not fully admitted to any of the one or more alternate configuration items. The method of claim 2, wherein the configuration options are prioritized and sequentially arranged according to their priorities, and wherein the one or more resources are selected for the one or more configuration choices The reservation is based on an option having a relatively higher priority and then based on an option having a relatively lower priority. The method of claim 3, wherein the configuration selection items are prioritized according to a prioritization parameter, the parameters comprising at least one of the following parameters: One or more parameters of a congestion control, one or more parameters of resource utilization of one or more access technologies, and an impact on one or more parameters of an existing configured quality of service. The method of claim 1, wherein the configuration comprises one or more tasks of the admission control, comprising at least one of the following: a first step of selecting a pilot group access technique, a second step, It evaluates and prioritizes configuration options related to the experimental group access technique if the pilot group is not empty, and a third step in which any of the prioritized configuration options are selected In the event that the allowed communication session can be admitted, a configuration selection is selected from among the prioritized configuration options such that the communication session can be admitted. The method of claim 1, wherein a resource range of at least one access technology included for the multi-technology access admission control is reduced, and the allowed data stream distributed via the at least one access technology is blocked The probability is maintained. A method of multiple technology access communication, the communication comprising permission control for distributing communication traffic via two or more access technologies, the method characterized in that the multiple technology access communication admission control will be in a session data A communication session received in the stream is separated into two or more data streams, thereby enabling it to be distributed via two or more access technologies. The method of claim 7, wherein the configuration of the plurality of access technologies is experimental. In the method of claim 7, one of the access technology configurations relies on requirements for data security, user, or terminal preferences. The method of claim 7, wherein the configuration of an access technology is based on a prediction of service efficiency or resource requirements including at least one of the two or more data streams. The method of claim 10, wherein the prediction is based on a statistic of the access technology that distributes the data stream. The method of claim 10, wherein the prediction is based on a measurement by a particular terminal. The method of claim 12, wherein the measurements comprise at least one of link quality and terminal location. The method of claim 7, wherein the range of resources included for the multi-technology access admission control is reduced, while the blocked probability of the allowed data stream distributed via the at least one access technique is maintained. The multiple technology access communication method of claim 1 or 7, wherein the multiple technology access communication is wireless communication. The multiple technology access communication method of claim 15, wherein the wireless communication is radio communication. A multi-technology access communication entity comprising admission control for distributing communication traffic via two or more access technologies, the entity being characterized by separating a multi-technology access communication session into Two or more data streams, processing components that enable the data streams to be distributed via two or more access technologies, and two or two based on user or terminal preferences or security requirements More than one The flow is configured to the processing components of a particular access technology. The entity of claim 17, wherein the configuration comprises selecting one or more configuration options, the selection comprising one or more of the following steps: a first step of preparing to reserve one or more resources, and a second step , in the case that all data streams of the communication session are allowed to be admitted, determining to reserve resources according to the reserve, and a third step, which allows all data streams of the communication session to be admitted The session is entered and the session is rejected if the data stream of the communication session is not fully admitted to any of the one or more alternate configuration items. The entity of claim 18, further comprising processing means for prioritizing the configuration options and arranging them sequentially, and wherein the one or more resources are prepared for selecting one or more configuration options A reservation is based on an option with a relatively higher priority and is then reserved based on an option with a relatively lower priority. The entity of claim 19, wherein the processing means for prioritizing the configuration selection according to the prioritization parameter comprises one or more of the following congestion control resources or resources of the one or more access technologies One or more parameters utilized, and the impact on one or more parameters of the service quality of the existing configuration. The entity of claim 17, wherein the configuration comprises one or more tasks of the admission control, comprising at least one of the following steps: a first step of selecting a trial group access technique, and a second step , which is evaluated if the experimental group is not empty and Prioritizing configuration options related to the pilot group access technology, and a third step in which any of the prioritized configuration options enables the communication session to be admitted One of the prioritized configuration options selects a configuration option to enable the communication session to be admitted. A multi-technology access communication entity comprising admission control for distributing communication traffic via two or more access technologies, the method being characterized in that the multiple technology access communication admission control will be in a session A communication session received in the data stream is separated into two or more data streams, thereby enabling it to be distributed via two or more access technologies. The entity of claim 22, wherein the configuration of the plurality of access technologies is experimental. As with the entity of claim 22, one of the access technology configurations relies on requirements for data security, user, or terminal preferences. The entity of claim 22, further comprising processing means for predicting service efficiency and resource requirements including at least one of the two or more data streams, the configuration of an access technology being based on service efficiency or Forecast of resource requirements. The entity of claim 25, wherein the prediction is based on a statistic of the access technology that distributes the data stream. The entity of claim 25, wherein the prediction is based on a measurement of a particular terminal. The entity of claim 27, wherein the measurements include link quality and terminal At least one of the locations. The entity of claim 17 or 22, wherein the real system is included in or connected to a radio network controller of a radio communication system. A multi-technology access communication user device, the communication comprising communication network admission control capable of distributing communication traffic via two or more access technologies, the user device being characterized by a processing component and a transmission component Determining, by the processing component, one or more parameters dependent on the one or more separated session materials, the parameters or parameters being related to at least one of a user or terminal preference and security requirement, the processing component scheduling the or The parameters are transmitted by the transmission member. The user device of claim 30, wherein the user device is a radio communication device. A communication system, wherein the communication system includes means for performing the method of any of claims 1-16. A communication system comprising a communication network having a network controller, wherein the network controllers comprise or are connected to one or more of the entities of any of claims 17-29. A communication system comprising a communication network comprising two or more terminals being user devices of request items 30 or 31.